Mini-mini review - It's not that bad.
Engine is smooth and quiet, quieter than the Volvo's 5 pot but I don't know if it's as smooth, hard to tell.
Tiptronic box is good at nicely slurred auto shifts but not so hot at deciding what you're asking it to do, wafting along gently it's unnoticeable, but if a bit of overtaking action is called for it tends to drop it down two or three gears when one would do. This was a pain in the arse when I first got the car but it's easy enough to anticipate after a few miles. The tiptronic shifty thing is a gimmick really, it works, but the delay between clicking the lever and something happening is irritating, so I don't use it that much. Having said that, it is ok when hooning.
Seats are ok, nowhere near as good as the Volvo ones, but the Audi has the sports leather jobs in. Comfy, yes, but probably not great for a 600 mile day. I'll try 'em to Czech sometime soon. Shame it's not got the heated seats really, but it's one of the first 500 A6 Avants made and an ex-Audi demo car so it's weird spec. It's the only one I've seen with black roof rails instead of the silver ones.
quattro rocketh mightily, although it can suffer a bit from wind-up when cold turning out of junctions. I'm going to give it a full diff oil change sometime soon.
Suspension is typical VAG. It's got the 'Sports' suspension on so it's a bit less queasily wobblesome than a normal A6, but it could be vastly improved, probably by a set of Mr Billy Stein's finest bobble reducers.
MPG 19-22 in town, 30-32 on a run. I'm averaging 25 mpg in it, so it's slightly better than the Volvo on average - but a lot slower. Super Unleaded is worth the extra.
Aircon works fine. No complaints.
Brakes work rather well, but the pedal is typically overservoed.
Steering is a bit numb, but accurate enough. I suspect this could be down to the 4wd. Not many messages to read as the thing is just gripping.
So, to sum up, it's nice, but it's not as good as some would have you believe. I think I'll run it for the winter and see what happens.